In order to ensure the transportation safety of export dangerous goods, strengthen the supervision of export dangerous goods packaging inspection, and is now adjusted to export dangerous goods packaging production enterprises. the relevant matters are announced as follows: 1. export dangerous goods packaging should have a hazardous cargo packaging marker prescribed by the united nations, which should include production enterprise code. customs implement code management for export dangerous goods packaging production enterprises, and code should reflect the direct customs information of the area where the production enterprise is located. second, the production enterprise code consists of uppercase english letters c (representing "customs") and six arab numbers, the top two arab figures represent the direct customs of the region in the region (directly affiliated customs code to see attachment), the last four arab figures 0001 -9999 represents the manufacturer. in the case of: c230003, "23" represents nanjing customs, "0003" represents enterprises in the sequence number of the nanjing customs. third, this announcement released the code for code before, before june 30, 2019, the original code can be applied for the "entry-exit cargo package performance inspection results", but it is necessary to complete the change in code before june 30. from july 1, 2019, the customs no longer accepted the packaging performance inspection application for the original code. this announcement is implemented from the date of issuance.